Select the numbers that have a factor of 5. mark all that applya. 15 d. 5b. 3 e. 50c. 45 f. 31

The answer is A,C,D,E. All of these end in 5 or 0, which is the divisibility rule for 5.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: